Question 1

Write the electron arrangement for the atom shown.
-Argon

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 2

The element in this list with chemical properties similar to magnesium is ________.

Accepted Answer

A) sodium 
B) boron 
C) carbon 
D) strontium 
E) chlorine 
A) sodium 
B) boron 
C) carbon 
D) strontium 
E) chlorine

Question 3

Sulfur is a nonmetal.

Accepted Answer

A) True 
 B)False

Question 4

Write the electron arrangement for the atom shown.
-The symbol for sodium is ________.

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 5

What is the correct electron arrangement for the lithium atom?

Accepted Answer

A) 3 
B) 3,1 
C) 1,2 
D) 2,1 
E) 2,5 
A) 3 
B) 3,1 
C) 1,2 
D) 2,1 
E) 2,5

Question 6

The correct symbol for the isotope of potassium with 22 neutrons is ________.

Accepted Answer

A)    K 
B)    K 
C)    P 
D)    P 
E)    K 
A)    K 
B)    K 
C)    P 
D)    P 
E)    K

Question 7

The elements lithium,sodium,and potassium ________.

Accepted Answer

A) are isotopes of each other 
B) are in the same period of elements 
C) have the same number of neutrons 
D) are in the same group 
E) have the same mass number 
A) are isotopes of each other 
B) are in the same period of elements 
C) have the same number of neutrons 
D) are in the same group 
E) have the same mass number

Question 8

Write the electron arrangement for the atom shown.
-The symbol for copper is ________.

Accepted Answer

The answer of Write the electron arrangement for the atom...

Question 9

Select the correct symbol for the element silver.

Accepted Answer

A) S 
B) Si 
C) Ag 
D) Au 
E) AG 
A) S 
B) Si 
C) Ag 
D) Au 
E) AG

Question 10

The symbol for potassium is P.

Accepted Answer

A) True 
 B)False

Question 11

Consider an isotope of sodium with a mass number of 25.The number of neutrons in this isotope of sodium is ________.

Accepted Answer

A) 11 
B) 14 
C) 16 
D) 25 
E) 32 
A) 11 
B) 14 
C) 16 
D) 25 
E) 32

Question 12

Identify the metalloid in the following list.

Accepted Answer

A) sulfur 
B) fluorine 
C) silver 
D) copper 
E) germanium 
A) sulfur 
B) fluorine 
C) silver 
D) copper 
E) germanium

Question 13

Ionization energy is ________.

Accepted Answer

A) the energy an ion acquires from an electron 
B) the energy needed to remove the least tightly bound electron 
C) highest for metals in Group 1A (1) 
D) higher for potassium than for lithium 
E) none of the above 
A) the energy an ion acquires from an electron 
B) the energy needed to remove the least tightly bound electron 
C) highest for metals in Group 1A (1) 
D) higher for potassium than for lithium 
E) none of the above

Question 14

Which of the following elements is a noble gas?

Accepted Answer

A) oxygen 
B) chlorine 
C) bromine 
D) argon 
E) nitrogen 
A) oxygen 
B) chlorine 
C) bromine 
D) argon 
E) nitrogen

Question 15

The ionization energy of atoms ________.

Accepted Answer

A) decreases going across a period 
B) decreases going down within a group 
C) increases going down within a group 
D) does not change going down within a group 
E) none of the above 
A) decreases going across a period 
B) decreases going down within a group 
C) increases going down within a group 
D) does not change going down within a group 
E) none of the above

Question 16

The atomic number is equal to the number of protons.

Accepted Answer

A) True 
 B)False

Question 17

Isotopes are atoms of the same element that have ________.

Accepted Answer

A) different atomic numbers 
B) the same atomic numbers but different numbers of protons 
C) the same atomic numbers but different numbers of electrons 
D) the same atomic number but different numbers of neutrons 
E) the same atomic mass but different numbers of protons 
A) different atomic numbers 
B) the same atomic numbers but different numbers of protons 
C) the same atomic numbers but different numbers of electrons 
D) the same atomic number but different numbers of neutrons 
E) the same atomic mass but different numbers of protons

Question 18

Which of the following gives the correct numbers of protons,neutrons,and electrons in a neutral atom of   Sn?

Accepted Answer

A) 118 protons,50 neutrons,118 electrons 
B) 118 protons,118 neutrons,50 electrons 
C) 50 protons,68 neutrons,50 electrons 
D) 68 protons,68 neutrons,50 electrons 
E) 50 protons,50 neutrons,50 electrons 
A) 118 protons,50 neutrons,118 electrons 
B) 118 protons,118 neutrons,50 electrons 
C) 50 protons,68 neutrons,50 electrons 
D) 68 protons,68 neutrons,50 electrons 
E) 50 protons,50 neutrons,50 electrons

Question 19

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Accepted Answer

A) The atomic mass of chlorine will be less than 35. 
B) The atomic mass of chlorine will be more than 37. 
C) You cannot tell what the atomic mass will be. 
D) The atomic mass will be between 35 and 37. 
E) The atomic mass will be 24.3. 
A) The atomic mass of chlorine will be less than 35. 
B) The atomic mass of chlorine will be more than 37. 
C) You cannot tell what the atomic mass will be. 
D) The atomic mass will be between 35 and 37. 
E) The atomic mass will be 24.3.

Question 20

Select the correct symbol for the element iron.

Accepted Answer

A) Ir 
B) Fs 
C) Fe 
D) In 
E) FE 
A) Ir 
B) Fs 
C) Fe 
D) In 
E) FE

Write the electron arrangement for the atom shown. -Argon

The element in this list with chemical properties similar to magnesium is ________.

Sulfur is a nonmetal.

Write the electron arrangement for the atom shown. -The symbol for sodium is ________.

What is the correct electron arrangement for the lithium atom?

The correct symbol for the isotope of potassium with 22 neutrons is ________.

The elements lithium,sodium,and potassium ________.

Write the electron arrangement for the atom shown. -The symbol for copper is ________.

Select the correct symbol for the element silver.

The symbol for potassium is P.

Consider an isotope of sodium with a mass number of 25.The number of neutrons in this isotope of sodium is ________.

Identify the metalloid in the following list.

Ionization energy is ________.

Which of the following elements is a noble gas?

The ionization energy of atoms ________.

The atomic number is equal to the number of protons.

Isotopes are atoms of the same element that have ________.

Which of the following gives the correct numbers of protons,neutrons,and electrons in a neutral atom of Sn?

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Select the correct symbol for the element iron.

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Exam 4: Atoms and Elements

Write the electron arrangement for the atom shown. -Argon

The element in this list with chemical properties similar to magnesium is ________.

Sulfur is a nonmetal.

Write the electron arrangement for the atom shown. -The symbol for sodium is ________.

What is the correct electron arrangement for the lithium atom?

The correct symbol for the isotope of potassium with 22 neutrons is ________.

The elements lithium,sodium,and potassium ________.

Write the electron arrangement for the atom shown. -The symbol for copper is ________.

Select the correct symbol for the element silver.

The symbol for potassium is P.

Consider an isotope of sodium with a mass number of 25.The number of neutrons in this isotope of sodium is ________.

Identify the metalloid in the following list.

Ionization energy is ________.

Which of the following elements is a noble gas?

The ionization energy of atoms ________.

The atomic number is equal to the number of protons.

Isotopes are atoms of the same element that have ________.

Which of the following gives the correct numbers of protons,neutrons,and electrons in a neutral atom of Sn?

A sample of chlorine has two naturally occurring isotopes.The isotope Cl-35 makes up 75.8% of the sample,and the isotope Cl-37 makes up 24.3% of the sample.Which of the following statements is true?

Select the correct symbol for the element iron.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters